RC-1

migrations/002_artifact_api_usage.sql

@@ -0,0 +1,23 @@
+CREATE TABLE IF NOT EXISTS artifact_api_usage (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    created_at INTEGER NOT NULL,
+    task_id TEXT REFERENCES tasks(id) ON DELETE SET NULL,
+    kind TEXT NOT NULL CHECK (kind IN ('character_anchor','artifact')),
+    provider TEXT NOT NULL,
+    model TEXT NOT NULL,
+    endpoint TEXT NOT NULL,
+    size TEXT NOT NULL,
+    quality TEXT NOT NULL,
+    request_id TEXT,
+    input_tokens INTEGER NOT NULL DEFAULT 0,
+    input_text_tokens INTEGER NOT NULL DEFAULT 0,
+    input_image_tokens INTEGER NOT NULL DEFAULT 0,
+    output_tokens INTEGER NOT NULL DEFAULT 0,
+    total_tokens INTEGER NOT NULL DEFAULT 0,
+    estimated_cost_usd REAL,
+    pricing_basis TEXT NOT NULL DEFAULT '',
+    meta_json TEXT NOT NULL DEFAULT '{}'
+);
+CREATE INDEX IF NOT EXISTS artifact_api_usage_created_idx ON artifact_api_usage(created_at DESC);
+CREATE INDEX IF NOT EXISTS artifact_api_usage_kind_created_idx ON artifact_api_usage(kind, created_at DESC);
+CREATE INDEX IF NOT EXISTS artifact_api_usage_task_idx ON artifact_api_usage(task_id);